Articles by tag "Catalyst Switch"

1. Cisco StackWise vs StackWise Virtual: Differences, Use Cases & Enterprise Deployment Guide
   Selene Gong

   36
   For enterprise network engineers, architects, and IT planners, deciding between Cisco's proprietary stacking technologies is critical for ensuring optimal performance, scalability, and resilience. While both StackWise and StackWise Virtual (SVL) merge multiple physical switches into a single ...
2. Cisco DNA Licensing for Catalyst Switches: Understanding, Activating, and Managing Licenses
   Selene Gong

   37
   Cisco DNA (Digital Network Architecture) licensing represents a modern approach to networking software, shifting from traditional perpetual models to subscription-based access. These licenses enable automation, assurance, security, and advanced analytics on Cisco Catalyst switches. For network ...
3. Cisco ROMMON Recovery Guide for Catalyst Switches and Routers
   Selene Gong

   35
   When a Cisco device fails to boot into its operating system (IOS or IOS XE), it enters a low-level diagnostic state known as ROM Monitor (ROMMON) mode. This emergency access point is crucial for performing Cisco ROMMON recovery, retrieving corrupted firmware, or resetting lost passwords. This ...
4. How to Replace Power Supply on Cisco Switches: Enterprise Guide
   Selene Gong

   38
   Power supply failures on Cisco switches can lead to unexpected downtime, stack desynchronization, and SLA violations. For enterprise networks, maintaining power redundancy and following a fast, safe, and standardized replacement procedure is essential. This guide walks you through the process ...
5. How to Identify a Faulty SFP Module on Cisco Switches: Troubleshooting and Diagnostics
   Selene Gong

   38
   In enterprise networks, Small Form-factor Pluggable (SFP) modules are critical for connecting switches, routers, and servers through fiber-optic or copper links. A single degraded or failed SFP can cause link instability, intermittent outages, packet loss, or stack desynchronization. Proactive ...
6. What Happens If Cisco SmartNet Expires? Risks, Implications, and Mitigation
   Selene Gong

   31
   If your Cisco SmartNet contract expires, your switches and routers will generally continue to operate and pass traffic. However, you lose the essential support provided by Cisco, including technical assistance, hardware replacement, and software updates. Understanding the operational and ...
7. How to Identify Your Cisco Switch Model from Serial Number: Step-by-Step IT Guide
   Selene Gong

   35
   For IT Managers, Network Engineers, and System Integrators, managing a large enterprise network is a complex task. During routine maintenance, audits, or emergency troubleshooting, you might encounter a lone serial number with no indication of the switch model or capabilities. Without a clear ...